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jz7460: Silence codec when changing playback frequency/mode

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Silences some annoying clicks.

Change-Id: I3d32d4b33c0ccc61877e10f5af97fe05084d66e5
This commit is contained in:
Solomon Peachy 2018-09-05 11:27:27 -04:00
parent 1020897794
commit 8edf4052c7
1 changed files with 6 additions and 2 deletions
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8
firmware/target/mips/ingenic_jz47xx/codec-jz4760.c
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@ -142,8 +142,11 @@ static int vol_tenthdb2hw(const int tdb)
void audiohw_set_volume(int vol_l, int vol_r)
{
uint8_t val = cs4398_read_reg(CS4398_REG_MISC) &~ CS4398_FREEZE;
cs4398_write_reg(CS4398_REG_MISC, val | CS4398_FREEZE);
cs4398_write_reg(CS4398_REG_VOL_A, vol_tenthdb2hw(vol_l));
cs4398_write_reg(CS4398_REG_VOL_B, vol_tenthdb2hw(vol_r));
cs4398_write_reg(CS4398_REG_MISC, val);
}
void audiohw_set_lineout_volume(int vol_l, int vol_r)
@ -159,8 +162,6 @@ void audiohw_set_lineout_volume(int vol_l, int vol_r)
void audiohw_set_filter_roll_off(int value)
{
/* 0 = fast (sharp);
1 = slow */
if (value == 0) {
cs4398_write_reg(CS4398_REG_RAMPFILT, cs4398_read_reg(CS4398_REG_RAMPFILT) & ~CS4398_FILT_SEL);
} else {
@ -252,6 +253,7 @@ void audiohw_set_frequency(int fsel)
return;
}
ap_mute(true);
__i2s_stop_bitclk();
/* 0 = Single-Speed Mode (<50KHz);
@ -268,6 +270,8 @@ void audiohw_set_frequency(int fsel)
__cpm_set_i2sdiv(mclk_div-1);
__i2s_set_i2sdiv(bclk_div-1);
__i2s_start_bitclk();
mdelay(20);
ap_mute(false);
}
void audiohw_postinit(void)